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LHAP Year 2-3 > Urban Forestry305#2deck > Flashcards

Urban Forestry305#2deck Flashcards

1
Q

Hearing protection is needed for any sound intensity greater than

A

85dB

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2
Q

Leg protection should be washed and cleaned on regular basis following manufacturers recommendations to

A

Ensure they remain entirely cut proof

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3
Q

The ideal length for leg protection is

A

About two inches below the top of the boot

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4
Q

The area of the body that receives the most chain saw injuries in the ground work is the

A

Left Leg

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5
Q

The most common head injury to tree workers from being struck by a falling object is

A

Concussion

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6
Q

Hearing injury from loud noise is completely reversible in time

A

No

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7
Q

Leg protection is designed to stop a chain running full throttle

A

No

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8
Q

The most common injury from chain saw is a

A

Laceration

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9
Q

Which component of PPE is not mandated by any regulation or standard, but is still an excellent item to have on hand is

A

Cell phone

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10
Q

The most common fatal accident scenario from felling a tree is

A

Being struck by a branch or the falling tree

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11
Q

Laceration is the medical term for

A

A torn, ragged cut

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12
Q

Chain saw cuts may occur where?

A

While on the ground, in the aerial lift and while aloft in the tree

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13
Q

Should you walk around site with the chainsaw running

A

No

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14
Q

The portion of the eye most often lacerated by the chain saw is

A

The upper eye lid

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15
Q

The medical term for a mass of hardened, inflamed tissue, usually as a result of infection such as a splint of material in the body is

A

Granulomas

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16
Q

NIHL stands for

A

Noise Induced Hearing Loss

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17
Q

Appropriate footwear operating a chain saw is

A

Heavy leather work boots with non-slip tread

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18
Q

The cavity in the ear where sound vibrations are converted to a nerve signal transmitted to the brain is called

A

Cochlea

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19
Q

The type of gloves that should not be worn, particularly if the wear will be chipping brush are

A

Gauntlet gloves

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20
Q

One of the major factors why professional saw users such as loggers and arborists, have fewer serious injuries from chain saws compared to occasional users such as homeowners is that

A

Professionals are typically wearing PPE

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21
Q

What is the most basic element in developing a tree felling plan

A

Gathering information

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22
Q

The first step in a tree felling plan is to assess

A

Hazards

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23
Q

In relation to tree felling, obstacle’s are

A

Anything that can be hurt or damaged

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24
Q

Determining the height of the tree to be felled can help you

A

Decide if there is enough room to fell it, consider alternative methods of removal, and establish a danger zone around the tree

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25
The danger zone around a tree base should have a radius of
Atleast 1.5 times the height of the tree
26
The "bad side" of a tree is the where there is a lean
Yes
27
If a solid tree is being felled towards the north, but has a slight lean toward the east, the "good side" of the tree will be the
west
28
What are the essential steps in tree felling
Determine the lean of the tree, checking for hazards, and establishing an escape route.
29
A stepped back cut can be warranted
Anytime an open face notch is used
30
The total percentage of accidents in tree felling occurs within a 15' radius of the tree base is
80-90%
31
The best escape route during tree felling is
The opposite direction of the fall at 45-degree angle
32
Kickback occurs when an object comes in contact with the
front, upper quadrant of the tip of the chain saw bar
33
A bore cut is initiated with which part of the chainsaw
The bottom corner of the tip of the bar
34
Sometimes a forward-leaning tree can split vertically up from the back cut. This creates a dangerous situation called a
Barbers Chair
35
To which degree should the open-face notch be cut for the most control
70 degrees or greater
36
The hinge length should be atleast
80% the diameter of the tree
37
The hinge thickness should be no more than
10% the diameter of the tree
38
Which is the best option when felling a tree with a forward lean
A bore cut
39
When using a bore cut for making the back cut in a felling operation the last part to be cut is the
Strap of wood in the back
40
The 4 chainsaw safety features
Chain catcher Hand/wrist guard Throttle interlock Inertia Hand brake
41
How do you activate the inertia hand brake
With your two front fingers or your wrist well keeping your thumb wrapped on the front grip. Never take your hand off the front grip. Always have two hands on the chainsaw
42
What do felling dogs provide
Leverage and control when making a cut
43
How many chainsaw related injuries are there a year for all users
40,000-90,000
44
Deaths occur in how many accidents a year
40-60
45
When does kickback occur
When the top corner of the bar is used
46
How are bore cuts started
With the bottom corner of the bar
47
What are the two types of wedges
Felling Bucking
48
On a felling wedge what are the dogs for and what way do they need to be facing
They are grips and need to face downwards
49
Do bucking wedges have dogs
No
50
What are the 6 steps in a felling plan
Check hazards Determine height and lean of tree Equipment check Establish escape route The notch/hinge The back cut
51
3 root defects are
Girdling No roots on the outside of the root ball One sided root growth on the ball
52
Has root pruning been shown to improve transplanting success
Yes
53
When installing a tree how much wider should the hole be than the root ball
2x width
54
Is a glazed hole okay for planting
No
55
What section of OHS covers Tree Care Operations
Part 39
56
Section 796 covers what in tree care operation
The Knot Exemption
57
What section of OHS are tree care workers and operations exempt from
Section 150.3
58
Section 793 states that an employer must develop what
Safe work practices and procedures
59
Fall protection and work positioning are covered by what 2 sections
794 and 795
60
Safe work practices and procedures are covered by what section
793
61
The knot exemption is covered by section?
796
62
Does section 150.3 apply to tree care workers and operations
No
63
What is the 5-15-90 Rule
Within 5' of a tree in the first 15 seconds a tree falling is when 90% of injuries or fatalities occur.
64
Should bystanders or tree workers be within the fall zone of tree when it is being brought down
No
65
Saw reactionary forces do what when cutting from the bottom
Push
66
Saw reactionary forces do what when cutting on the top
Pull
67
Site assessment includes
Drainage test Soil compaction test Soil Texture test
68
Selecting a nursery trees includes assessing what
Above ground quality Below ground quality
69
The right tree for the right place includes
ExposureSoil Space constraints Function of planting Hardiness
70
According to Alberta OHS PART 34, section 3, workers felling trees must use wedges to help topple trees in the intended direction 
Yes, they must use wedges 
71
According to studies done in the USA between 1991 and 2016, one tree worker was killed on the job every 
2.5days 
72
When writing pruning specifications for your crew it is most important to give instructions that cannot be misunderstood 
Yes. 
73
A young urban forest tree can be pruned how many times in the first 15 years of it life to develop a strong, sustainable structure 
As many as five times.

LHAP Year 2-3 (12 decks)

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